The book 'Defining Collaborative Surveillance: A Core Concept for Strengthening the Global Architecture for Health Emergency Preparedness, Response, and Resilience' by the World Health Organization explores the importance of collaborative surveillance in enhancing global health security. It provides a comprehensive framework for improving health emergency preparedness and response by integrating multiple data sources and fostering cooperation among stakeholders. The book targets public health officials, policymakers, and other stakeholders involved in health monitoring and emergency management. It emphasizes the need for robust national systems for disease, threat, and vulnerability monitoring, and highlights the significance of cross-sectoral collaboration in addressing health threats. The work aims to create resilient communities capable of rapid response to health emergencies by promoting shared capabilities and resources across borders.